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Finding the Fourth Proportional to 145,851.75, 218,777.64 and 47,355.75

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Solution

The fourth proportional to 145,851.75, 218,777.64 and 47,355.75 is: 71,033.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,851.75 : 218,777.64 = 47,355.75 : x
  2. Step 2: Convert to fraction form
    145,851.75/218,777.64 = 47,355.75/x
  3. Step 3: Cross multiply
    145,851.75x = 218,777.64 × 47,355.75
  4. Step 4: Simplify right side
    145,851.75x = 10,360,379,225.43
  5. Step 5: Solve for x
    x = 10,360,379,225.43/145,851.75
  6. Step 6: Final answer
    x = 71,033.63

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.